On Fri, Mar 12, 2010 at 8:30 AM, Tornes, Ivan E <torn...@battelle.org> wrote: > I’m working on a project that handles large data sets. Up to this point I > had not had any issues using matplotlib, but I tried yesterday to have it > plot a file that had 8 million float,float pairs in it and dies with the > following message:
There have been some enhancements in path simplification in svn, so you may want to try this but no guarantees this will help http://matplotlib.sourceforge.net/faq/installing_faq.html#install-from-svn Alternatively, you could use something like the "clippedline" example. The basic idea is that most screen devices have order of a couple million pixels, so there is no way to resolve more points than that. But you may want to be able to zoom into a certain region will full detail, which is not possible if you decimate your data before hand. What the clippedline demo does is just pass the points that are in the current viewport to mpl. http://matplotlib.sourceforge.net/examples/pylab_examples/clippedline.html While this may not solve your case, because it looks like you may be exceeding the rendering complexity with data in the viewport, the design pattern may help inspire to you to write a custom class to handle adaptively decimating your data so you can still see a sketch of your data when panned out, but nonethless get the full detail when zoomed in. This is in part what what the path simplification algorithm tries to achieve, so do take a look if things work better on svn HEAD. Hope this helps, JDH ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
